Thanksgiving Hours

The Museum will close early at 3 pm on Wednesday, November 22, and will be closed all day on Thursday, November 23. The Museum will be open on Friday, November 24, 10 am to 8 pm. Have a happy Thanksgiving!

Hardware/ household

Object Number: 
4 1/2 x 3 x 7/8 in.
The 8 digit adder registers up to $999,999.99 and resembles a tobacco tin with a black enamel finish with gold striping and numbers. It is marked on the edge in gold "The Bassett Adder, Patents Pending" and on the back "Manufactured only by J.H. Bassett & Co., Chicago, ILL. USA". It is operated by placing the point of a stylus into the holes marked with gold numbers and sliding the black indicator line to the desired number. The only innovation in the simple adder is a red flag appearing in the column to the left signaling when it is necessary to carry.
Credit Line: 
Gift of Bella C. Landauer
Due to ongoing research, information about this object is subject to change.
Creative: Tronvig Group